滚动条滚动方向
// 页面滚动监听事件 window.onscroll = function(e){ scrollFunc(); if(scrollDirection == 'down'){ console.log('down') } else if(scrollDirection == 'up'){ console.log('up') }else if(scrollDirection == 'left'){ console.log('left') } else if(scrollDirection == 'up'){ console.log('up') } } let scrollAction = {x: 0, y: 0}, scrollDirection = ''; // 判断页面滚动方向 function scrollFunc() { if (scrollAction.x == 0 || scrollAction.y == 0) { scrollAction.x = window.pageXOffset; scrollAction.y = window.pageYOffset; } let diffX = scrollAction.x - window.pageXOffset; let diffY = scrollAction.y - window.pageYOffset; if (diffX < 0) { // Scroll right scrollDirection = 'right'; } else if (diffX > 0) { // Scroll left scrollDirection = 'left'; } else if (diffY < 0) { // Scroll down scrollDirection = 'down'; } else if (diffY > 0) { // Scroll up scrollDirection = 'up'; } else { // First scroll event } scrollAction.x = window.pageXOffset; scrollAction.y = window.pageYOffset; }
以自己现在的努力程度,还没有资格和别人拼天赋